If you are looking for a description or a "creepypasta" style summary of the file:
Are you trying to , or are you looking to write a story based on this file? 28871mp4
"Have you seen the deep dive on 28871mp4? I can’t tell if it’s a genius ARG or actually real." If you are looking for a description or
"I found the source of 28871mp4. Whatever you do, don't play the audio backwards." 28871mp4
"Metadata check: 28871.mp4 isn't a video. It's a broadcast. Are you seeing the signal too?"
If you want to send a text that matches the mysterious vibe of the topic: